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Forum Index : Microcontroller and PC projects : doh moment

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stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2534
Posted: 03:20pm 08 Jul 2025
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I tried a ili9341 board I built and upgraded to pico2 but no display so upgraded to v6.02 and set options but no display. swapped display, same. reflashed and heartbeat flashing but same. Then I realised I put the pico board wrong way round.
amazed pico not damaged. how to waste hours :)
 
Amnesie
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Joined: 30/06/2020
Location: Germany
Posts: 623
Posted: 03:52pm 08 Jul 2025
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  stanleyella said  
amazed pico not damaged.



Ha! I know that! But I am amazed how sturdy the pico is, because I abused my picos also massivly. I mean it!

Put accidently 20 Volts on the GPIO input, still works without any problems. Other time I reversed the power supply voltage (Vsys) and GND for approx. one minute! The RP-chip got hot... BUT: works without problems!

Of course I marked those chip with an permanent marker as "MAYBE DAMAGED" to be sure.. but those Picos are really strong!


Greetings
Daniel
 
stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2534
Posted: 08:22pm 08 Jul 2025
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yeah @Mnesiea.. I forgot your name. I'm no good at jokes.
but rpi pico 2 is forgiving. hdmi took my attention but want to relearn lcd picomite gui cos it's really well implemented with brill features.
not as good as hdmi or vga cos it's spi and slower reading the screen and stuff but still impressive imho
 
Grogster

Admin Group

Joined: 31/12/2012
Location: New Zealand
Posts: 9592
Posted: 11:37pm 08 Jul 2025
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Easy mistake to make.  
Glad you worked it out, without loosing too much sanity.

Also, thanks for posting this thread.
I like to also post threads where I have made a school-boy mistake, as it is light entertainment for the other members, but also a reminded that no-one is perfect, and we ALL make mistakes - sometimes very obvious silly ones!

"You're only Human.  You're SUPPOSED to make mistakes." - Billy Joel
Smoke makes things work. When the smoke gets out, it stops!
 
stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2534
Posted: 03:24pm 09 Jul 2025
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@Grogster- yeah very stupid of me. swapping displays with a working board and head scratching.

the board takes 2 sizes ili9341
 
stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2534
Posted: 04:43pm 09 Jul 2025
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I did a ili bigger display but wired the pico upside down so I could see the gpio labels.2040  silly.
got to wire diode and resistor for it to work touch and sd card which I done but not on above board and it doesn't mess with ili9341
 
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